Railway brake appliance



' June'27, 1933.

G. A. A. GILLEN 1,915,731 RAILWAY BRAKE APPLIANCE Filed July 8, 1950 2Sheets-Sheet l Inventor v jammfih A ttornqy,

G. A. A. GILLEN 1,915,731

RAILWAY BRAKE APPLIANCE June 27, 1933.

Filed July 8, 1950- 2 Sheets-Sheet 2 In venior GEORGE/Z4 62 457V.

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I A iiorney '3 ent in the brake cylinders, and by which he istrationwith the port 16, to exhaust the The invention will be clearlyunderstood tween the inlet end thereof and the parti P ienieduune2?,1933 re aye STATES PATENT I i V l shorten A. A. GILLEN, or JERSEYcrrv, NEW JERSEY l I nAILwAY'BeAKE APPLIANCE Application filed Ju1y 8,1930, Serial No; 466,550.

. This invention relates to newan'd useful 1 Figure 2 is a View partlyin elevation and improvements in railway brake appliances, partly insection of the control valve of the v and'more particularlyitpertainsto'improvepresent invention, and; I p 1 ments in freight carbraking-apparatus. Figure 3 is a diagrammatic View illus- 5 Freight carbraking equipmentas comtrating the device of the present invention 5jmonly' constructed includes an element genand its relation to theelements of an air erally'known as a retainer valve. These rebrakesystem.

tainer valves require adjustmentafter each Beferrlngspeclfically to thedrawings, and braking operation before the engineer can particularly toFigure 2 thereof, it will be recharge the train line pressure to againapseen that a device constructed in accordance 69 ply the brake, andthese adjustments require with the present invention comprises achainthe constant attention of the train crew, her 10, having connectedthere to an air inwhich on a fast train or in bad weather, vis let pipe11, and an air exhaust or outlet pipe attended by many hazare I r 12.The chamberlO is preferably cylindri It is one of the objects of thepresent incal iii"shape',' and the inletand outlet pipes vention toprovide means in the air brake are connected preferably in the endsthereof system of a freight train, whereby, the af0re- Projecting fromthe""cylindrical chamber, 'mentioned operation. of adjustingithesevthere is a flange or the like 13 provided with i eral retainer valvesas well as the valves openings 14, by which the chamber be themselves,may be entirely eliminatedsecuiedin operative'position in thelcab of Itis another object of the inven ion to a locomotive, adjacent theengineers station provide novel means whereby the engineer therein. mayhave full control of the recharging of 'Th ch mb 10 h artiti n 15 thetrain line pressure, thereby giving to the ranged preferably adjacentits outlet end, engineer, complete braking control of a and saidpartition has a passage 16 theretrain. 7 through. Mounted in thepartition 15, and It is another object of the invention to adapted toopen and close the "passage 16, I provide novel means whereby theengineer there is a valve 17 which has a port 18 ex may tell at alltimes the amount of air prestending therethrough adapted when in regmayvary or adjust the pressure in the brake main portion of the chamber 10,Th val e cylinders of the system. 17 has an operating handle 19, and anindex Other objects of the invention reside in pointer 20which coincideswith calibrations f certain novel and improved constructions, ar 21 toindicate the position of the valve pasrangements and combinations ofparts heresage 18 relative to the passage 16 of the parinafter describedand, particularly pointed tition 15. A gauge 22 is suitably mounted outin the claim, the advantages of which upon the chamber 10, and hascommunicawill be readily understood and appreciated tion with theinterior thereof togive a readby those skilled in the art. ing of thepressure within the chamber he'- from the accompanying drawingsillustrattion 15.- ing the inventionin its preferred form and Asillustrated in Figures 1 and 3 the chamthe following detaileddescription of the conber 10 is mounted in a locomotive cab, andv hstructions therein Shownits intake pipe 11 is connected by a pipeSO Inthe drawings, I I to the brake cylinder pressure line pipe-31 Figure 1is a perspective View of a por- 'which is connected to the exhaust portsof tion of a freight train, showing the same. the triple valves 33, onthe several cars by equipped withadevice in accordance with the pipes 35whilethe trainline 32 is likewise present invention, the latter beingillustrated connected to the auxiliary reservoirs by a diagrammatically,pipe connection 83, the'aux'iliary reservoir 34 being connected to thebrake cylinder 36 by a pipe 37 The brake cylinder pressure pipe 31 andtrain line pipe 32 on the several cars are connected by short hoselengths 38 and 39 respectively, and the usual cut out cocks 4:0 andcoupling 41 are provided.

The device operates in the following manner:

The brakes are applied in the usual manner by the engineer. When it isdesired to release the brakes, the valve 17 which is normally closed ismoved to position where its passage 18 is in alinement with the passage16, releasing the air in the brake cylinders and thus releasing thebrakes. Furthermore, by proper operation of the valve 17 the engineermay regulate the pressure retained in the brake cylinders as desired. 3

In installing the device, it is to be understood that the brake cylinderpressure pipe 31 is connected to the exhaust ports of the several triplevalves by the pipes 35. Also it is to be understood that the several cutout cocks of the train line are open except the cock at the front of thelocomotive, and the remote cock on the last car of the train.

From the foregoing, it will be apparent that the present inventionprovides an attachment for air brake systems, the use of whicheliminates the necessity of retainer valves, and the several adjustingoperations attendant the use thereof. Furthermore, the inventionprovides a device, the use of which gives to the engineer completecontrol of the braking operation of a train, and at the same thecylinder in communication with the small chamber, a pressure gaugemounted on the cylinder and in communication with the large chamber, aflange on the exterior of the cylinder for attachment to a supportingmember, said partition having a passage extending therethrough forconnecting the two chambers together, and a vertically arranged taperedpassage intersecting the first passage and having its large endextending out through the top of the cylinder, a tapered valve memberfitting in the tapered passage and having a port. therein forregistering with the first passage when the valve is turned to a certainposition, a handle connected to the upper end of the valve, and thelower end of the valve having a threaded shank passing through a hole ina part of the cylinder and a nut threaded on the shank for holding thevalve in the tapered passage.

In testimony whereof I afiix my signature.

GEORGE A. A. GILLEN.

